CN104094065B - The indoor set of aircondition - Google Patents

Abstract

To provide an indoor unit of an air conditioner capable of achieving weight reduction, cost reduction, and strength improvement of a decorative panel in a well-balanced manner. The indoor unit of the air conditioner includes: a main body casing (31), which is arranged in the ceiling (30); and a decorative panel (32), which is installed on the lower part of the main body casing (31), It is arranged along the ceiling (30), and is formed with a rectangular air outlet (46). The decorative panel (32) is composed of a center panel (71) made of sheet metal and side panels (72) made of synthetic resin. , the side panels are mounted on both sides of the central panel (71) perpendicular to the longitudinal direction of the outlet (46).

Description

Indoor unit of air conditioner

technical field

The present invention relates to an indoor unit of an air conditioner.

Background technique

Among split-type air conditioners, there is a ceiling-embedded air conditioner in which an indoor unit is housed in a ceiling. For example, the ceiling-embedded indoor unit disclosed in Patent Document 1 includes a decorative panel on the lower surface of a box-shaped main body casing, the main body casing is installed in the ceiling, and the decorative panel is arranged along the lower surface of the ceiling. Air inlets and air outlets are provided on the decorative panel.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2006-97995

Contents of the invention

The technical problem to be solved by the invention

Conventionally, the decorative panel of the ceiling-embedded indoor unit is produced by sheet metal processing or by molding of synthetic resin.

However, in the former case, since the weight of the decorative panel is very large, there are disadvantages in that the mountability is deteriorated and the manufacturing cost is also increased. In addition, in the latter case, the decorative panel can be reduced in weight, but since the strength is lowered, a gap may be generated between it and the lower surface of the ceiling due to deflection.

In addition, such an air conditioner changes the width dimension in the left-right direction according to the air-conditioning capacity (horsepower) while keeping the length in the front-back direction constant. However, in the latter case, the molding of the decorative panel needs to be required according to the width dimension, and therefore, the cost will be increased instead.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an indoor unit of an air conditioner capable of achieving weight reduction, cost reduction, and strength improvement of a decorative panel in a well-balanced manner.

Technical solutions adopted to solve technical problems

The indoor unit of the air conditioner according to the present invention includes: a main body case installed in the ceiling; The air outlet is characterized in that the above-mentioned decorative panel is composed of a center panel made of sheet metal and side panels made of synthetic resin, and the side panels are attached to two sides of the center panel perpendicular to the longitudinal direction of the above-mentioned air outlet. side.

According to this configuration, the decorative panel is composed of a center panel made of sheet metal and side panels made of synthetic resin, and the side panels are attached to both sides of the center panel. Compared with the case where the entire member is made of synthetic resin, weight reduction and cost reduction can be achieved, and strength improvement can be achieved.

In addition, in such an indoor unit, the air outlet is formed near the outer periphery of the decorative panel, and the strength of the side portion of the decorative panel along the longitudinal direction of the air outlet is easily reduced due to the presence of the air outlet, and the decorative panel and The side portion perpendicular to the longitudinal direction of the outlet is less likely to be affected by the outlet, and it is easy to secure strength. Therefore, in the present invention, by providing side panels made of synthetic resin on both sides of the center panel perpendicular to the longitudinal direction of the air outlet, it is possible to suppress a reduction in the strength of the decorative panel.

In the above structure, preferably, the decorative panel is formed in a rectangular shape, and the short sides of the decorative panel are constituted by the side panels.

In the case where the above-mentioned decorative panel is formed in a rectangular shape, the short sides thereof are stronger than the long sides and are less likely to be bent. Therefore, by constituting the short sides with synthetic resin side panels, the decorative panel can be suppressed from being deformed. strength is reduced.

An operation opening for operating an attachment for attaching the main body case in the ceiling from below the ceiling may be formed in the side panel.

According to the above configuration, the operation opening can be easily formed in the side panel by molding.

Preferably, a metal reinforcing member is attached to the side panels along the longitudinal direction thereof.

According to the above configuration, the strength of the side panel can be increased, and it is possible to prevent a gap from being generated between the side panel and the ceiling due to deflection.

Preferably, a connecting portion connected to the main body case is provided on the side panel, and the reinforcement member is disposed near the connecting portion.

According to the above structure, the connection strength between the side panel and the main body casing can be effectively improved.

The connection portion may be provided in plurality at intervals in the longitudinal direction of the side panel, and the reinforcing member may be provided between the plurality of connection portions.

According to the above structure, it is possible to well prevent the side panel from being bent between the plurality of connection parts.

Invention effect

According to the present invention, weight reduction, cost reduction, and strength improvement of a decorative panel can be achieved in a well-balanced manner.

Description of drawings

Fig. 1 is a configuration diagram of an air conditioner according to an embodiment of the present invention.

Fig. 2 is a side sectional view showing an indoor unit of the air conditioner (a sectional view taken along the line AA in Fig. 3 ).

Fig. 3 is an explanatory plan view of the indoor unit.

Fig. 4 is a front view of the indoor unit.

Fig. 5 is a bottom view of the indoor unit.

Fig. 6 is a side sectional view of the indoor unit (a sectional view taken along the line BB in Fig. 3 ).

Fig. 7 is a cross-sectional view taken along the line DD of Fig. 3 .

Fig. 8 is a cross-sectional view taken along the line EE of Fig. 3 .

Fig. 9 is a cross-sectional view taken along the line FF of Fig. 3 .

FIG. 10( a ) is an enlarged view of G portion in FIG. 5 , and FIG. 10( b ) is a cross-sectional view taken along the line H-H in FIG. 10( a ).

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a configuration diagram of an air conditioner according to an embodiment of the present invention. This air conditioner 10 includes an indoor unit (unit on the utilization side) 11 and an outdoor unit (unit on the heat source side) 12 .

The outdoor unit 12 is provided with a compressor 14 , a four-way switching valve 18 , an outdoor heat exchanger 15 , an outdoor expansion valve 16 , and the like, and these components are connected together by a refrigerant pipe 25 . In addition, an outdoor ventilation fan 20 is provided in the outdoor unit 12 .

A gas-side shutoff valve 22 and a liquid-side shutoff valve 23 are provided at the ends of the internal refrigerant circuit of the outdoor unit 12 . The gas side stop valve 22 is arranged on the side of the four-way switching valve 18 , and the liquid side stop valve 23 is arranged on the side of the outdoor expansion valve 16 .

The indoor unit 11 is provided with an indoor expansion valve 28, an indoor heat exchanger 13, and the like. The gas side shutoff valve 22 and the indoor heat exchanger 13 are connected by a gas side refrigerant communication pipe 24 , and the liquid side shutoff valve 23 and the indoor expansion valve 28 are connected by a liquid side refrigerant communication pipe 26 .

In the air conditioner 10 configured as described above, the four-way switching valve 18 is held in the state shown by the solid line in FIG. 1 when the cooling operation is performed. In addition, as shown by the solid line arrow, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 14 flows into the outdoor heat exchanger 15 through the four-way switching valve 18, and exchanges heat with the outdoor air through the operation of the outdoor ventilation fan 20. Condensation, liquefaction. The liquefied refrigerant flows through the substantially fully opened outdoor expansion valve 16 , and flows into the indoor unit 11 through the liquid-side refrigerant communication pipe 26 . In the indoor unit 11 , the refrigerant is decompressed to a predetermined low pressure by the indoor expansion valve 28 , and then evaporates by exchanging heat with indoor air in the indoor heat exchanger 13 . Then, the indoor air cooled by the evaporation of the refrigerant is blown into the room by the indoor ventilation fan 19 to cool the room. In addition, the refrigerant evaporated and gasified in the indoor heat exchanger 13 returns to the outdoor unit 12 through the gas-side refrigerant communication pipe 24 , and is sucked into the compressor 14 through the four-way switching valve 18 .

On the other hand, when the heating operation is performed, the four-way switching valve 18 is maintained in the state shown by the dotted line in FIG. 1 . In addition, as shown by the dotted arrow, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 14 flows into the indoor heat exchanger 13 of the indoor unit 11 through the four-way switching valve 18, and exchanges heat with the indoor air to condense and liquefy. . The indoor air heated by condensation of the refrigerant is blown into the room by the indoor blower fan 19 to heat the room. The refrigerant liquefied in the indoor heat exchanger 13 returns to the outdoor unit 12 through the liquid-side refrigerant communication pipe 26 from the indoor expansion valve 28 in a substantially fully opened state. The refrigerant returned to the outdoor unit 12 is decompressed to a predetermined low pressure by the outdoor expansion valve 16 , and evaporates by exchanging heat with the outdoor air in the outdoor heat exchanger 15 . Then, the refrigerant evaporated and vaporized in the outdoor heat exchanger 15 is sucked into the compressor 14 through the four-way switching valve 18 .

2 is a side sectional view showing the indoor unit 11 of the air conditioner 10 (A-A arrow sectional view in FIG. 3 ), FIG. 3 is an explanatory top view of the indoor unit 11, FIG. 4 is a front view of the indoor unit 11, and FIG. It is a bottom view of the indoor unit 11.

The indoor unit 11 is a ceiling-embedded indoor unit installed in a ceiling or the like indoors, and includes a main body case 31, a decorative panel 32, an indoor ventilation fan 19, an indoor heat exchanger 13, a drain pan 33, and the like.

The main body casing 31 is formed into a box shape open downward by an upper wall portion 35 and four peripheral wall portions (a front wall portion 36, a rear wall portion 37, a left wall portion 38, and a right wall portion 39), wherein the upper wall portion 35 has a quadrangular shape in plan view, and the four peripheral wall portions hang down from the four sides of the upper wall portion 35 downward. In addition, a decorative panel 32 is attached to the opening at the lower end of the main body case 31 . As shown in FIG. 4 , the main body case 31 is suspended from the lower surface of an upper floor above the ceiling 30 by a hanger 40 , and the decorative panel 32 is arranged along the lower surface of the ceiling 30 .

As shown in FIGS. 2 and 3 , the inside of the main body case 31 is divided into a blower chamber 43 and a heat exchange chamber 44 by a partition plate 42 . In this specification, the blower chamber 43 side is referred to as the rear side, and the heat exchange chamber 44 side is referred to as the front side.

The decorative panel 32 has a suction port 45 below the blower chamber 43 and has an air outlet 46 below the front side of the heat exchange chamber 44 . A grid-shaped grille 47 is attached to the suction port 45 , and a wind deflector 48 for adjusting the blowing direction of air is provided so as to be able to swing at the blowing port 46 .

As shown in FIG. 3 , two indoor blower fans 19 are arranged at intervals in the left-right direction in the blower chamber 43 . A motor 50 is disposed between the two indoor ventilation fans 19 , and the two indoor ventilation fans 19 are driven by the motor 50 . As shown in FIG. 2 , the indoor blower fan 19 of this embodiment is a multi-bladed fan composed of a substantially cylindrical casing 19 a and an impeller 19 b provided in the casing 19 a. A suction port 19a1 is formed on the side surface of the case 19a, and a discharge port 19a2 protrudes forward at the front portion of the case 19a. The outlet 19a2 is inserted into an opening formed in the partition plate 42 in a sealed state.

When indoor blower fan 19 operates, indoor air is sucked into blower chamber 43 from suction port 45 , sucked into suction port 19a1 of housing 19a, and then blown out to heat exchange chamber 44 through discharge port 19a2. Therefore, the space in blower chamber 43 becomes a "suction space" in which air is sucked in by indoor blower fan 19 , and the space in heat exchange chamber 44 becomes a "blowout space" in which air is blown out by indoor blower fan 19 .

The indoor heat exchanger 13 is arranged in the heat exchange chamber 44 . The indoor heat exchanger 13 is, for example, a cross-fin-type fin-tube heat exchanger including a large number of fins arranged side by side at predetermined intervals in the left-right direction and heat transfer tubes provided to penetrate the fins. The indoor heat exchanger 13 is inclined so that the upper part is located on the front side (air outlet 46 side; downstream side of the air flow) and the lower part is located on the rear side (indoor blower fan 19 side; upstream side of the air flow). In addition, the air blown out from the indoor ventilation fan 19 into the heat exchange chamber 44 exchanges heat with the indoor heat exchanger 13 , and is then blown out into the room through the air outlet 46 . In addition, a drain pan 33 is provided below the indoor heat exchanger 13 , and the dew condensation water generated in the indoor heat exchanger 13 is received by the drain pan 33 .

The drain pan 33 is formed of a material with high thermal insulation such as polystyrene foam, and functions as a thermal insulator. In addition, as shown in FIGS. 2 and 3 , the inner surfaces of the upper wall portion 35 , the front wall portion 36 , and the left and right wall portions 38 and 39 of the main body casing 31 of the heat exchange chamber 44 are respectively provided with foamed polystyrene or the like. Constructed heat insulators 54-57.

Fig. 6 is a side sectional view of the indoor unit (a sectional view taken along the line BB in Fig. 3 ). As shown in FIGS. 3 and 6 , an electric component unit 58 is arranged at the right end portion of the blower chamber 43 . The electrical component unit 58 is composed of an electrical component box 59 , a control board 60 accommodated in the electrical component box 59 , a terminal block 61 , and the like. In addition, electronic components such as a flow divider connected to the indoor heat exchanger 13, a piping group 62 such as a header, a drain pump 63, an indoor expansion valve 28, and a thermistor are arranged at the right end of the heat exchange chamber 44. In addition, the power wiring 64 of these electronic components is connected to the electric component unit 58 through the partition plate 42 from the heat exchange chamber 44 .

As shown in FIG. 6 , the drain pump 63 discharges the dew condensation water stored in the drain pan 33 to the outside by operating a built-in motor (actuator). The drain pump 63 is attached and fixed to the upper wall portion 35 of the main body case 31 via an attachment stand (an attachment member) 66 . In addition, a float sensor 65 is also installed on the mounting table 66 . The drain pump 63 and the float sensor 65 are assembled into a unit by the connection frame 67 .

The mounting stand 66 is formed into a U-shape in side view, including front and rear leg plates 69 and a base plate 70 connecting the lower ends of both leg plates 69 to each other. The upper end portion of the leg plate 69 is fixed to the upper wall portion 35 .

Guide claws 68 for guiding power lines 64 such as the indoor expansion valve 28 , the thermistor, the float sensor 65 , and the drain pump 63 are integrally formed on the connection frame 67 . The guide claws 68 are used to support so that the power wiring 64 does not hang down toward the drain pan 33 side.

As shown in FIGS. 3 to 5 , the decorative panel 32 of the present embodiment is formed in a rectangle whose width in the left-right direction is larger than the length in the front-rear direction. The decorative panel 32 is composed of a center panel 71 disposed at a central portion in the left-right direction, and side panels 72 attached to left and right side portions of the center panel 71 . The central panel 71 is quadrangular when viewed from above, and constitutes most of the decorative panel 32 . A suction port 45 is formed on the rear side of the center panel 71 , and an air outlet 46 is formed on the front side of the center panel 71 .

The suction port 45 is formed in a long rectangle in the left-right direction, and spans approximately the entire width of the center panel 71 in the left-right direction. The outlet 46 is formed in a long rectangle in the left-right direction, and has a smaller front-rear width than the inlet 45 . The air outlet 46 is slightly shorter than the left-right width of the center panel 71, and is arranged offset to the left.

In this embodiment, the center panel 71 is made of a thin metal plate (sheet metal). In contrast, the side panels 72 are molded from a synthetic resin material. The side panels 72 are formed elongated in the front-rear direction, and are formed in a two-layer structure by an upper panel 73 (see FIG. 3 ) and a lower panel 74 (see FIG. 5 ). The upper side panel 73 is fixed to the central panel 71 with screws, and the lower side panel 74 is fixed to the central panel 71 with screws in a detachable manner, and is connected to the upper side in a detachable manner through a locking structure or a screw fixing structure. Panel 73 is connected. The upper side panel 73 is also connected to the main body case 31 at connecting portions 76 and 77 shown in FIG. 3 . An operation opening 73 e of the hanger 40 (see FIG. 4 ) is formed in the upper side panel 73 .

Fig. 7 is a cross-sectional view taken along the line DD of Fig. 3 . The upper side panel 73 of the side panel 72 has a base plate 73a arranged substantially in the horizontal direction, and a side plate 73b provided inside the base plate 73a in the left-right direction. At the boundary between the base plate 73a and the side plate 73b, a substantially L-shaped reinforcing member 80 is fixed to a plurality of positions in the front-rear direction of the base plate 73a and the side plate 73b by fixing screws 81, 82, respectively. As shown in FIG. 3 , the reinforcing member 80 is formed to be long in the longitudinal direction of the side panel 72 , that is, in the front-rear direction, and its ends in the front-rear direction are respectively arranged in the vicinity of the front and rear connection parts 76 and 77 , and are arranged in the front-rear direction. Between the front and rear connection parts 76, 77.

As shown in Figure 7, the side plate 73b of the upper side panel 73 is opposite to the side plate 71a of the central panel 71, and the fixing screw 82 for fixing the reinforcing member 80 is also screwed with the side plate 71a of the central panel 71, thereby The central panel 71 and the upper side panel 73 are connected together. The center panel 71 and the upper side panel 73 may be connected by fixing screws other than the fixing screws 82 or the like.

In addition, the connection portion 77 on the rear side adopts a structure in which the curved portion 38a formed at the lower end of the left and right wall portions (the left wall portion 38 is illustrated in FIG. 7 ) of the main body case 31 and the side surface formed on the upper side panel 73 pass through. A seal member 83 is interposed between the curved portions 73c at the upper end of the plate 73b, and the connecting bolt 84 inserted through the screw insertion hole 73c1 of the curved portion 73c from below is screwed into the female threaded hole 38a1 of the curved portion 38a to secure the main body. The casing 31 is connected to the upper side panel 73 .

Fig. 8 is a cross-sectional view taken along the line EE of Fig. 3 .

The front connection portion 76 has a structure in which a seal is provided between the hollow convex portion 73d formed on the base plate 73a of the upper side panel 73 and the substantially L-shaped bracket 31b attached to the side surface of the main body case 31 . member 83, screw the connection bolt 84 inserted through the screw insertion hole 73d1 formed on the front end surface of the convex portion 73d from below, and the female screw hole 31b1 formed in the bracket 31b, thereby connecting the main body case 31 and the upper side panel 73 connections.

As shown in FIGS. 4 , 7 and 8 , the lower side panel 74 is gently connected to the lower surface of the center panel 71 , and is formed into a shape that is gently curved so that the outer side in the left-right direction and the front-rear direction is higher. . In addition, the lower side panel 74 is detached from the upper side panel 73 when the decorative panel 32 is attached to or removed from the main body case 31 provided in the ceiling 30 .

Fig. 9 is a cross-sectional view taken along the line FF of Fig. 3 .

An operation opening 73 e of the hanger 40 (see FIG. 4 ) is formed in the upper side panel 73 of the side panel 72 . The operation opening 73e is formed simultaneously when the upper side panel 73 is molded. As shown in FIG. 3 , the opening 73 e for operation is formed at two front and rear positions of the upper side panel 73 corresponding to the mounting bracket 31 c to which the hanger 40 is locked. The height of the main body case 31 can be finely adjusted by removing the lower side panel 74 from the upper side panel 73 and inserting a tool into the operation opening 73e from below the ceiling 30 to operate the nut of the hanger 40 .

As shown in FIG. 3 , an opening portion 73 f longer than the operation opening 73 e in the front-rear direction is formed between the front and rear operation openings 73 e. Confirmation of the operation of the hanger 40 , introduction of light, etc. can be performed by using the opening 73 f, and the weight of the side panel 72 can be reduced.

In the present embodiment, the decorative panel 32 is composed of a center panel 71 and side panels 72, the center panel 71 is made of sheet metal, and the side panels 72 are made of synthetic resin. Therefore, it is possible to reduce the weight and cost of the decorative panel 32 compared to the case where the whole is formed by sheet metal. Moreover, compared with the case where the whole decorative panel 32 is made of synthetic resin, strength improvement can be aimed at. In particular, since the front and rear sides of the decorative panel 32 are located on the long sides of the rectangle, they are easier to bend than the left and right sides located on the short sides. The deflection can be minimized and a gap between it and the ceiling 30 can be prevented.

In addition, since the air outlet 46 and the suction port 45 are formed near the front and rear sides of the decorative panel 32, the strength of the front and rear sides of the decorative panel 32 tends to decrease. Since the center panel 71 is made of sheet metal, it is possible to suppress a decrease in its strength.

On the other hand, the left and right side parts of the decorative panel 32 are located on the short sides of the rectangle, and are arranged so as to be perpendicular to the long side direction of the air outlet 46 and the air inlet 45. The influence of strength reduction is small, and it is relatively easy to secure strength. Therefore, even if the left and right side portions of the decorative panel 32 are configured by the side panels 72 made of synthetic resin, the reduction in strength can be suppressed.

In addition, since the reinforcement member 80 is provided along the front-rear direction of the side panel 72 , the deflection of the side panel 72 can be suppressed, and a gap between the side panel 72 and the ceiling 30 can be prevented. In addition, the reinforcing member 80 is provided between the front and rear connecting portions 76 and 77 between the side panel 72 and the main body case 31 . Between the front and rear connection parts 76 and 77 is the part of the side panel 72 that is most likely to bend. Therefore, this part can be effectively reinforced by the reinforcing member 80 and can prevent bending. In addition, since the front end and the rear end of the reinforcement member 80 are disposed near the front and rear connecting portions 76 and 77 , the connection strength between the main body case 31 and the side panel 72 can be improved.

The ceiling-embedded indoor unit 11 of this embodiment changes the width dimension in the left-right direction according to the air-conditioning capacity (horse power) while keeping the length in the front-back direction constant. When the decorative panel 32 as a whole is made of synthetic resin, it is necessary to make molds for each model with a different width dimension in the left and right directions, resulting in an increase in manufacturing cost. Regarding this point, in this embodiment, the center panel 71 positioned at the center in the left-right direction of the decorative panel 32 is made of sheet metal, and the side panels 72 positioned at the sides in the left-right direction are made of synthetic resin. The ability to change the width dimension of the left-right direction of the center panel 71 allows the side panels 72 to be used in multiple models. Since the center panel 71 is made of sheet metal, no molding die is required, and even if the width dimension is different, it can be handled at a lower cost than synthetic resin molding.

As described above, the center panel 71 of the decorative panel 32 is made of sheet metal. Therefore, when the cooled air is blown out from the outlet 46 shown in FIG. Therefore, a frame member 46a made of a synthetic resin having lower thermal conductivity than metal is provided at the front end edge of the air outlet 46 to prevent dew condensation.

On the other hand, since the frame member 46a is made of synthetic resin, it has a large coefficient of linear expansion and easily expands and contracts due to ambient temperature changes. When the frame member 46a expands, the frame member 46a may bend if it comes into contact with the side panel 72, and if a gap is provided between the side panel 72 and the frame member 46a to prevent this collision, the appearance will deteriorate. .

Therefore, in this embodiment, as shown in FIG. 10 , a concave portion 73g is formed on the upper side panel 73 of the side panel 72, and the length of the frame member 46a is set so that when the frame member 46a expands, the frame member 46a The end portion of the frame member 46a is accommodated in the recessed portion 73g, and even if the frame member 46a shrinks, there is almost no gap between the frame member 46a and the side panel 72. Since the recessed part 73g is covered with the lower side panel 74, it is not exposed to the outside. Therefore, the frame member 46a does not bend when it comes into contact with the side panel 72, or the appearance is not impaired due to the gap between the side panel 72 and the frame member 46a.

The present invention is not limited to the above-described embodiments, and can be appropriately changed within the scope of the invention described in the claims.

For example, in the above embodiment, one air outlet 46 is formed on the front side of the decorative panel 32, but the air outlet 46 may be formed on the rear side. That is, the indoor unit of the present invention may also be in a form in which air is blown from the front and rear of the decorative panel 32 .

In addition, a suction port 45 for indoor air is formed in the decorative panel 32 , but a structure may be adopted in which air is sucked into the main body case 31 through a duct or the like from the suction port formed in a place other than the decorative panel 32 .

Symbol Description

10 air conditioning unit

11 indoor unit

30 Ceiling

31 Main body shell

32 decorative panels

46 outlet

71 center panel

72 side panels

73e Opening for operation

76 Connecting part

77 Connecting part

80 reinforcement members

Claims (5)

1. an indoor set for aircondition, comprising:

Body shell (31), this body shell (31) is arranged in ceiling (30); And

Decoration panel (32), this decoration panel (32) is installed on the bottom of described body shell (31), and along ceiling (30) configuration, and be formed with the blow-off outlet (46) of rectangular air,

It is characterized in that,

Described decoration panel (32) is made up of the center panel (71) of sheet metal and plastic avris panel (72), this avris panel (72) is installed on the both sides orthogonal with the long side direction of described blow-off outlet (46) of described the center panel (71)

Described decoration panel (32) is formed as rectangle, and the sidepiece forming the minor face of this decoration panel (32) is made up of described avris panel (72),

Operation opening (73e) is formed described avris panel (72), this operation opening (73e) for the below from ceiling (30) to by described body shell (31), the installed part (40) be installed in ceiling (30) operates

Along its long side direction, metal stiffener (80) is installed described avris panel (72),

Described avris panel (72) and described the center panel (71) comprise side plate respect to one another (73b, 71a),

Described stiffener (80) is fixed on the described side plate (71a) of described the center panel (71) across the described side plate (73b) of described avris panel (72).

2. the indoor set of aircondition as claimed in claim 1, is characterized in that,

Described avris panel (72) comprising: along the described side plate (73b) of above-below direction; And the approximate horizontal bedplate (73a) orthogonal with described side plate (73b),

The cross section of the long side direction along decoration panel (32) of described stiffener (80) is formed as L-shaped shape, one side's sheet material of this L-shaped shape is fixed on the biside plate (73b, 71a) of described avris panel (72) and described the center panel (71), and the opposing party's sheet material of this L-shaped shape is fixed on the bedplate (73a) of described avris panel (72).

3. the indoor set of aircondition as claimed in claim 1 or 2, is characterized in that,

Described operation opening (73e) is configured in the scope of the long side direction of described stiffener (80).

4. the indoor set of aircondition as claimed in claim 1 or 2, is characterized in that,

Be provided with the connecting portion (76,77) be connected with described body shell (31) described avris panel (72), described stiffener (80) is configured near described connecting portion (76,77).

5. the indoor set of aircondition as claimed in claim 4, is characterized in that,

Described connecting portion (76,77) is multiple across being interval with on the long side direction of described avris panel (72), and described stiffener (80) is arranged between multiple connecting portion (76,77).